For more than a year, Mashburn has been working to keep the Englands out of business for good.

Original charges were dropped after technicalities.

"Basically what you had happen is they would change the compound, then we would outlaw it, then they would change the compound, we would outlaw it," Mashburn explained.

The task force didn't give up, though, and on Monday the aromatherapy store was closed.

The couple has been charged, and could face jail time for what authorities call a dangerous business venture.

"The stores know exactly what they're selling," Oklahoma Bureau of Narcotics spokesman Mark Woodward said. "Nobody who wants incense or potpourri buys this stuff. The only people that buy it are people who also buy rolling papers and they go home and smoke it to get high."